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Built for quality and consistency GXII PSUs utilizes a single powerful 12V rail to deliver clean and efficient power to systems. This high power efficiency is set to deliver ~85% power efficiency and is held to the strict standards of 80PLUS Bronze. These PSUs deliver high amperage to power high-end components. All GXII PSUs are equipped with a HDB 120mm fan that offers a greatly increased fan lifespan and low noise during use. This increases overall fan lifespan and protects critical power supply components. Leaving nothing to chance, this protection is strengthened by a comprehensive set of world-class safety measures.


  • Nonstop USB power - USB charging even when the PC is off
  • Single +12V rail for superior load balancing and VGA compatibility
  • High efficiency that meets 80 Plus Bronze
  • Super silent & long lifespan HDB fan
  • Dual filter from electromagnetic interference
  • Huge bulk capacitor for hold-up times of >16ms when 80% loaded
  • Multiple Protection Design (OVP/UVP/OCP/OPP/SCP/OTP)
  • High reliability (MTBF > 100,000 hrs)



Model RS650-ACAAB1-US; RS-650-ACAA-B1
Type lntel Form Factor ATX 12V V2.31
PFC Active PFC (>0.9 typical)
Dimension 150 x 140 x 86mm / 5.9 x 5.5 x 3.4 inch
Input Voltage 90-264Vac (Full range)
Input Frequency Range 47-63Hz
Fan 120mm intelligent fan
Efficiency 85% @ Typical Load
MTBF >100,000 Hours
Protection OVP / UVP / OCP / OPP / SCP / OTP
Regulatory CE, UL, FCC, CCC, TUV, C-tick, KCC, CSA, BSMI, GOST
Connector MB 20+4 Pin x 1
CPU12V 4+4 Pin x 1
PCI-e 6+2 Pin x 2
SATA x 6
4Pin Peripheral x 3
4Pin Floppy x 1
USB Charger cable x 1
Warranty 5 years
UPC Code 884102021244
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    • Click logo to read full review:
      Pureoverclock.com:  Great Value
      Pureoverclock.com : December 2013

      "Very capable value-oriented power supply that nicely gets the job done for anyone who needs an affordable, no-nonsense unit. "

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      3dgameman.com: KICKASS Gamemans Choice
      3dgameman.com : November 2013

      "The Cooler Master Game Xtreme II is the 2nd generation of the extremely popular Game Xtreme PSU series. The new GXII PSUs have been tweaked and come with a quiet HDB fan & nonstop USB power. The nonstop USB power lead enables power to the USB ports, even when the system is turned off. The 650W model is an excellent choice and it's affordable, 80 Plus certified, has a single +12V rail & comes with a 5 year warranty."




      » Details

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      -  GXII Series Manual
      -  GXII Series Product Sheet
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